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Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
It was also the first area code assigned in the numbering plan. New Jersey numbering plan areas as shown in the July 1963 NJ Bell telephone directory, when the use of the area code became mandatory. In 1956, New Jersey was divided into two numbering plan areas, a northern area which retained the code 201, and a southern area which received the ...
Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number.
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Numbering plan areas and area codes of New Jersey Map of numbering plan area 201/551. Area codes 201 and 551 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. State of New Jersey. Area code 201 was the area code assigned to the entire state of New Jersey in 1947, when the North American area code system was formed.
Notes ^ Democratic [People's] Republic of Korea South Korea ISO 3166-1 numeric 410 ISO 3166-1 alpha-3 KOR ISO 3166-1 alpha-2 KR ICAO airport code prefix RK E.164 code 82 IOC country code KOR Country code top-level domain.kr ICAO aircraft regis. prefix HL- E.212 mobile country code 450 NATO three-letter code KOR NATO two-letter code KS LOC MARC code KO ITU Maritime ID 440, 441 ITU letter code ...
Area code 973 was created on June 1, 1997, in a split of area code 201, [1] [2] which was the original area code for of all of New Jersey when the North American Numbering Plan was inaugurated for nationwide operator dialing in 1947. In 1958, the numbering plan area of 201 was cut back to the northern half of the state, and in 1991 to just the ...
With the introduction of the area code 848 overlay, 10-digit dialing became mandatory (on December 1, 2001). The 732/848 area, excluding the portion in Union County, generally defines the Central New Jersey region while 609/640/856 and 908/201/551/862/973 generally mark Southern New Jersey and Northern New Jersey, respectively.